Symmetrically-Inverted Notation
From Kundalini WIki
Symmetrically-Inverted Notation is simply notation in which one clef is written in standard notation, while the other clef is written using symmetrical inversion, or mirror image.
Symmetrically-Inverted Notation is simply notation in which one clef is written in standard notation, while the other clef is written using symmetrical inversion, or mirror image.